1 // USB functions and data.
5 // Local information for a usb controller.
17 struct ohci_regs *regs;
23 #define USB_TYPE_UHCI 1
24 #define USB_TYPE_OHCI 2
26 extern struct usb_s USBControllers[];
32 #define USB_MAXADDR 127
36 int configure_usb_device(struct usb_s *cntl, int lowspeed);
37 struct usb_ctrlrequest;
38 int send_default_control(u32 endp, const struct usb_ctrlrequest *req
40 int usb_send_bulk(struct usb_pipe *pipe, int dir, void *data, int datasize);
41 struct usb_pipe *alloc_bulk_pipe(u32 endp);
42 struct usb_pipe *alloc_intr_pipe(u32 endp, int period);
43 int usb_poll_intr(struct usb_pipe *pipe, void *data);
44 struct usb_interface_descriptor;
45 struct usb_endpoint_descriptor *findEndPointDesc(
46 struct usb_interface_descriptor *iface, int imax, int type, int dir);
47 u32 mkendpFromDesc(u32 endp, struct usb_endpoint_descriptor *epdesc);
50 /****************************************************************
52 ****************************************************************/
55 mkendp(struct usb_s *cntl, u8 devaddr, u8 ep, u8 lowspeed, u8 maxsize)
57 u8 bus = cntl-USBControllers;
58 u8 size = __ffs(maxsize);
59 return (size<<25) | (lowspeed<<24) | (bus<<16) | (devaddr<<8) | ep;
62 static inline u8 endp2ep(u32 endp) {
65 static inline u8 endp2devaddr(u32 endp) {
68 static inline struct usb_s *endp2cntl(u32 endp) {
70 return &USBControllers[bus];
72 static inline u8 endp2speed(u32 endp) {
73 return (endp>>24) & 1;
75 static inline u8 endp2maxsize(u32 endp) {
76 return 1 << (endp>>25);
80 /****************************************************************
81 * usb structs and flags
82 ****************************************************************/
84 // USB mandated timings (in ms)
85 #define USB_TIME_SIGATT 100
86 #define USB_TIME_ATTDB 100
87 #define USB_TIME_DRST 10
88 #define USB_TIME_DRSTR 50
89 #define USB_TIME_RSTRCY 10
91 #define USB_TIME_SETADDR_RECOVERY 2
93 #define USB_PID_OUT 0xe1
94 #define USB_PID_IN 0x69
95 #define USB_PID_SETUP 0x2d
97 #define USB_DIR_OUT 0 /* to device */
98 #define USB_DIR_IN 0x80 /* to host */
100 #define USB_TYPE_MASK (0x03 << 5)
101 #define USB_TYPE_STANDARD (0x00 << 5)
102 #define USB_TYPE_CLASS (0x01 << 5)
103 #define USB_TYPE_VENDOR (0x02 << 5)
104 #define USB_TYPE_RESERVED (0x03 << 5)
106 #define USB_RECIP_MASK 0x1f
107 #define USB_RECIP_DEVICE 0x00
108 #define USB_RECIP_INTERFACE 0x01
109 #define USB_RECIP_ENDPOINT 0x02
110 #define USB_RECIP_OTHER 0x03
112 #define USB_REQ_GET_STATUS 0x00
113 #define USB_REQ_CLEAR_FEATURE 0x01
114 #define USB_REQ_SET_FEATURE 0x03
115 #define USB_REQ_SET_ADDRESS 0x05
116 #define USB_REQ_GET_DESCRIPTOR 0x06
117 #define USB_REQ_SET_DESCRIPTOR 0x07
118 #define USB_REQ_GET_CONFIGURATION 0x08
119 #define USB_REQ_SET_CONFIGURATION 0x09
120 #define USB_REQ_GET_INTERFACE 0x0A
121 #define USB_REQ_SET_INTERFACE 0x0B
122 #define USB_REQ_SYNCH_FRAME 0x0C
124 struct usb_ctrlrequest {
132 #define USB_DT_DEVICE 0x01
133 #define USB_DT_CONFIG 0x02
134 #define USB_DT_STRING 0x03
135 #define USB_DT_INTERFACE 0x04
136 #define USB_DT_ENDPOINT 0x05
137 #define USB_DT_DEVICE_QUALIFIER 0x06
138 #define USB_DT_OTHER_SPEED_CONFIG 0x07
140 struct usb_device_descriptor {
155 u8 bNumConfigurations;
158 #define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */
159 #define USB_CLASS_AUDIO 1
160 #define USB_CLASS_COMM 2
161 #define USB_CLASS_HID 3
162 #define USB_CLASS_PHYSICAL 5
163 #define USB_CLASS_STILL_IMAGE 6
164 #define USB_CLASS_PRINTER 7
165 #define USB_CLASS_MASS_STORAGE 8
166 #define USB_CLASS_HUB 9
168 struct usb_config_descriptor {
174 u8 bConfigurationValue;
180 struct usb_interface_descriptor {
185 u8 bAlternateSetting;
188 u8 bInterfaceSubClass;
189 u8 bInterfaceProtocol;
193 struct usb_endpoint_descriptor {
203 #define USB_ENDPOINT_NUMBER_MASK 0x0f /* in bEndpointAddress */
204 #define USB_ENDPOINT_DIR_MASK 0x80
206 #define USB_ENDPOINT_XFERTYPE_MASK 0x03 /* in bmAttributes */
207 #define USB_ENDPOINT_XFER_CONTROL 0
208 #define USB_ENDPOINT_XFER_ISOC 1
209 #define USB_ENDPOINT_XFER_BULK 2
210 #define USB_ENDPOINT_XFER_INT 3
211 #define USB_ENDPOINT_MAX_ADJUSTABLE 0x80